- Feb 10, 2010
When a user 1 intercoms another user, and both are using speakerphone, they get horrible feedback (squeels)...[The phones are on opposite sides of the building, so the mic isn't picking up the other's speaker] I am on firmware 6.1.5(a). If one of them picks up the handset, it goes away... Is this a firmware issue? Or a problem with the phone? Speakerphone for calls seems ok.